Finding the Fourth Proportional to 94.97, 130.97 and 68.91
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Solution
The fourth proportional to 94.97, 130.97 and 68.91 is: 95.03
Step by Step Solution
- Step 1: Write the proportion equation
94.97 : 130.97 = 68.91 : x - Step 2: Convert to fraction form
94.97/130.97 = 68.91/x - Step 3: Cross multiply
94.97x = 130.97 × 68.91 - Step 4: Simplify right side
94.97x = 9,024.80 - Step 5: Solve for x
x = 9,024.80/94.97 - Step 6: Final answer
x = 95.03
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.